A084629 Brilliant numbers such that when they are concatenated with their 10's complement, which also must be brilliant, the result is a prime.

473, 779, 22331, 30353, 47573, 53237, 57599, 66767, 68021, 75953, 81797, 96023, 97133, 99221, 112661, 120983, 212519, 236849, 248687, 373097, 388511, 391649, 427319, 433793, 444359, 453689, 473699, 474689, 555641, 566081, 566207, 597953

Offset

1,1

References

J. Earls, Mathematical Bliss, Pleroma Publications, 2009, pages 10-11. [From Jason Earls, Nov 21 2009]

Links

Table of n, a(n) for n=1..32.

Example

a(3)=22331 because it is a brilliant number and its 10's complement: 77669 is also brilliant and 2233177669 is prime.

Crossrefs

Cf. A078972.

Sequence in context: A006180 A074654 A157434 * A075286 A235897 A215738

Adjacent sequences: A084626 A084627 A084628 * A084630 A084631 A084632

Keyword

base,nonn

Author

Jason Earls, Jun 28 2003

Status

approved